这个偏远社区的目标是在粮食生产上完全自给自足。

The remote community aims to be completely ___self-sufficient in food production.

在许多社会中，不再能自理的老年人可能面临社会边缘化。

In many societies, elderly individuals who are no longer ___self-sufficient may face social marginalization.

一个实现能源自给自足的国家拥有更大的地缘政治独立性。

A nation that is energy ___self-sufficient has greater geopolitical independence.